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Microflex 101-0010 Installation And Operation Manual

Usb to 2-wire rs-485 converter
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Installation
Operation &
Specifications
Manual

General Description

The 101-0010 USB to RS-485 Converter provides a simple, low cost interface
between a PC or laptop with a USB port, and 2-wire RS-485 devices. Universal
Serial Bus (USB) drivers make this converter compatible with most software
developed for RS-232 serial port interfaces because it appears as an RS-232
port to your software. Switching between receive and transmit is automatically
controlled, RTS (request to send) is not used to control transmit. Power for the
converter is taken from the USB port so no external power supply is required.
A rugged design makes 101-0010 an ideal choice for fi eld engineers and tech-
nicians who service RS-485 2-wire equipment in an industrial environment.
Because the 101-0010 RS-485 converter is used on devices without a ground
terminal, voltage suppression is used to clamp the common mode voltage to +/-
7 volts to help prevent destruction of the converter.
For an RS-485 converter with a RS-232 interface Microfl ex offers the 101-0009.
620-0005 R1.b © Microfl ex 2007-2012
101-0010
USB to 2-Wire RS-485 Converter

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Summary of Contents for Microflex 101-0010

  • Page 1: General Description

    RTS (request to send) is not used to control transmit. Power for the converter is taken from the USB port so no external power supply is required. A rugged design makes 101-0010 an ideal choice for fi eld engineers and tech- nicians who service RS-485 2-wire equipment in an industrial environment.
  • Page 2 Driver Installation - 7, Vista, XP , and 2000 The USB drivers should be installed before the RS-485 converter is connected to the PC’s USB port. After the drivers are installed, Windows will automatically detect the converter when it is connected to a USB port and complete the setup. To pre-install the drivers, run setup.exe from the included CD and follow the on- screen prompts.

  • Page 3: Changing The Com Port Number

    Changing the COM Port Number The assigned serial COM port number can be changed to any available COM port by using the Device Manager. Open the Device Manager and select “View > Devices by Type”. Expand “Ports (COM & LPT)” in the list to see which port the USB RS485 Serial Converter is assigned to.

  • Page 4: Uninstalling Usb Drivers

    Uninstalling USB Drivers For Windows 7, Vista, XP, and 2000 - use the Device Manager to uninstall the driver from your system. With the RS-485 Converter connected to your USB port, locate the RS-485 converter in the hardware tree. For details on how to do this refer to the section on “Changing the COM Port Number”...

  • Page 5: Software Setup

    RED = B RS-485 Connection Converter Grounding The 101-0010 converter does not provide an RS-485 ground terminal. Unless the other device’s interface is isolated, there is a risk of a ground loop current that could result in equipment damage. The converter should only be used where the common mode voltage (ground potential difference between the two inter- faces) is within the standard RS-485 common mode voltage of +/- 7 volts.

  • Page 6: Safety Considerations

    (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by Microflex, LLC could void the user’s authority to operate this equipment. Emissions EN55022: 1998...

  • Page 7: Specifications

    Specifications Enclosure Molded Buna-N 90 Durometer Rubber with Stainless Steel Cover Weight ....................5 ounces Converter Dimensions ............1.75” x 2.375” x 0.5” Connector ....................USB-A Cable Length .................... 6 feet Compatibility ..............USB 1.1 and USB 2.0 Active Current .................. 30mA Max Suspend Current ............

  • Page 8: Limited Warranty

    RIGHT TO RECOVER DAMAGES CAUSED BY FAULT OR NEGLIGENCE ON THE PART OF MICROFLEX SHALL BE LIMITED TO THE AMOUNT THERETOFORE PAID BY THE CUSTOMER. MICROFLEX, LLC WILL NOT BE LIABLE FOR DAMAGES RESULTING FROM LOSS OF DATA, PROFITS, USE OF PRODUCTS, OR INCIDENTAL OR CONSEQUENTIAL DAMAGES, EVEN IF ADVISED OF THE POSSIBILITIES THEREOF.

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